PH Questions

[Charlie]

Thanks Rich for that info. Interesting on how much of 20 Mule Team you need to add, which brings me to this question: since you are adding so much in the pool, what does that do to the DE filter pressure? Will I see a huge increase? My pool is ~14,500 gallons.

[chem geek]

You won't see any change in pressure -- I presume you are adding it directly to the bulk pool water. What you add to water is like adding salt -- it fully dissolves. It does have a small effect on Total Alkalinity -- 50 ppm Borates at a pH of 7.5 increases TA by about 5 ppm -- but you can use The Pool Calculator to calculate the saturation index and it will account for the Borates (assuming you put that into the calculator).